Open AccessMessenger Ribonucleic Acid Stability in Relaxed and Stringent Escherichia coli Starved for Methionine
Author(s) -
Lorenzo Silengo
Publication year - 1973
Publication title -
journal of bacteriology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.652
H-Index - 246
eISSN - 1067-8832
pISSN - 0021-9193
DOI - 10.1128/jb.115.1.447-449.1973
Subject(s) - biology , escherichia coli , methionine , stringent response , biochemistry , microbiology and biotechnology , amino acid , gene
During starvation for each of four amino acids, relaxed and stringent strains of Escherichia coli showed exponential decay of pulse-labeled unstable messenger ribonucleic acid (mRNA), with RNA degraded more slowly in the relaxed strain. An additional unique difference was observed during starvation for methionine: the relaxed strain showed non-exponential decay of mRNA, with a survival curve similar to that of an aging process.
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